Examples of com.badlogic.gdx.graphics.Texture

com.badlogic.gdx.graphics.Texture

A Texture wraps a standard OpenGL ES texture.

A Texture can be managed. If the OpenGL context is lost all managed textures get invalidated. This happens when a user switches to another application or receives an incoming call. Managed textures get reloaded automatically.

A Texture has to be bound via the {@link Texture#bind()} method in order for it to be applied to geometry. The texture will bebound to the currently active texture unit specified via {@link GLCommon#glActiveTexture(int)}.

You can draw {@link Pixmap}s to a texture at any time. The changes will be automatically uploaded to texture memory. This is of course not extremely fast so use it with care. It also only works with unmanaged textures.

A Texture must be disposed when it is no longer used
@author badlogicgames@gmail.com

  }
  
  void generateRegions(GenerationMode mode){
    //generate regions
    texturePanel.clear();
    Texture texture = texturePanel.getTexture();
    int   rows = (int)rowSlider.getValue(), columns = (int)columnSlider.getValue(),
        yOffset = texture.getHeight()/rows, xOffset = texture.getWidth()/columns;
    
    if(mode == GenerationMode.ByRows){
      for(int j=0; j < rows; ++j){
        int rowOffset = j*yOffset;
        for(int i=0; i < columns; ++i){

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    GlyphVector vector = font.layoutGlyphVector(GlyphPage.renderContext, chars, 0, chars.length, Font.LAYOUT_LEFT_TO_RIGHT);


    int maxWidth = 0, totalHeight = 0, lines = 0;
    int extraX = 0, extraY = ascent;
    boolean startNewLine = false;
    Texture lastBind = null;
    int offsetX = 0;
    for (int glyphIndex = 0, n = vector.getNumGlyphs(); glyphIndex < n; glyphIndex++) {
      int charIndex = vector.getGlyphCharIndex(glyphIndex);
      if (charIndex < startIndex) continue;
      if (charIndex > endIndex) break;


      int codePoint = text.codePointAt(charIndex);


      Rectangle bounds = getGlyphBounds(vector, glyphIndex, codePoint);
      bounds.x += offsetX;
      Glyph glyph = getGlyph(vector.getGlyphCode(glyphIndex), codePoint, bounds, vector, glyphIndex);


      if (startNewLine && codePoint != '\n') {
        extraX = -bounds.x;
        startNewLine = false;
      }


      if (glyph.getTexture() == null && missingGlyph != null && glyph.isMissing()) glyph = missingGlyph;
      if (glyph.getTexture() != null) {
        // Draw glyph, only binding a new glyph page texture when necessary.
        Texture texture = glyph.getTexture();
        if (lastBind != null && lastBind != texture) {
          GL11.glEnd();
          lastBind = null;
        }
        if (lastBind == null) {
          texture.bind();
          GL11.glBegin(GL11.GL_QUADS);
          lastBind = texture;
        }
        int glyphX = bounds.x + extraX;
        int glyphY = bounds.y + extraY;

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      emitter.setSprite(new Sprite(loadTexture(imagesDir.child(imageName))));
    }
  }


  protected Texture loadTexture (FileHandle file) {
    return new Texture(file, false);
  }

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      this.yUp = parameters.yUp;
      FileHandle tmxFile = resolve(fileName);
      root = xml.parse(tmxFile);
      ObjectMap<String, Texture> textures = new ObjectMap<String, Texture>();
      for (FileHandle textureFile : loadTilesets(root, tmxFile)) {
        Texture texture = new Texture(textureFile, parameters.generateMipMaps);
        texture.setFilter(parameters.textureMinFilter, parameters.textureMagFilter);
        textures.put(textureFile.path(), texture);
      }
      DirectImageResolver imageResolver = new DirectImageResolver(textures);
      TiledMap map = loadTilemap(root, tmxFile, imageResolver);
      map.setOwnedResources(textures.values().toArray());

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        FileHandle file;
        if (imagePath.equals(ParticleEditor.DEFAULT_PARTICLE) || imagePath.equals(ParticleEditor.DEFAULT_PREMULT_PARTICLE))
          file = Gdx.files.classpath(imagePath);
        else
          file = Gdx.files.absolute(imagePath);
        emitter.setSprite(new Sprite(new Texture(file)));
      } catch (GdxRuntimeException ex) {
        ex.printStackTrace();
        EventQueue.invokeLater(new Runnable() {
          public void run () {
            JOptionPane.showMessageDialog(ParticleEditor.this, "Error loading image:\n" + imagePath);

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        EventQueue.invokeLater(new Runnable() {
          public void run () {
            final ByteBuffer buffer = ByteBuffer.allocateDirect(1024 * 1024 * 4);
            buffer.order(ByteOrder.LITTLE_ENDIAN);
            fontGenerator.getTextureData(buffer.asIntBuffer());
            TextureRegion glyphRegion = new TextureRegion(new Texture(new TextureData() {
              Pixmap pixmap;


              public int getWidth () {
                return width;
              }

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  GlyphPage (UnicodeFont unicodeFont, int pageWidth, int pageHeight) {
    this.unicodeFont = unicodeFont;
    this.pageWidth = pageWidth;
    this.pageHeight = pageHeight;


    texture = new Texture(pageWidth, pageHeight, Format.RGBA8888);
  }

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        // renderingBackgroundColor.a);
        // fillRect(0, 0, unicodeFont.getGlyphPageWidth() + 2, unicodeFont.getGlyphPageHeight() + 2);
        int index = glyphPageCombo.getSelectedIndex();
        List pages = unicodeFont.getGlyphPages();
        if (index >= 0 && index < pages.size()) {
          Texture texture = ((GlyphPage)pages.get(glyphPageCombo.getSelectedIndex())).getTexture();


          glDisable(GL_TEXTURE_2D);
          glColor4f(renderingBackgroundColor.r, renderingBackgroundColor.g, renderingBackgroundColor.b,
            renderingBackgroundColor.a);
          glBegin(GL_QUADS);
          glVertex3f(0, 0, 0);
          glVertex3f(0, texture.getHeight(), 0);
          glVertex3f(texture.getWidth(), texture.getHeight(), 0);
          glVertex3f(texture.getWidth(), 0, 0);
          glEnd();
          glEnable(GL_TEXTURE_2D);


          texture.bind();
          glColor4f(1, 1, 1, 1);
          glBegin(GL_QUADS);
          glTexCoord2f(0, 0);
          glVertex3f(0, 0, 0);


          glTexCoord2f(0, 1);
          glVertex3f(0, texture.getHeight(), 0);


          glTexCoord2f(1, 1);
          glVertex3f(texture.getWidth(), texture.getHeight(), 0);


          glTexCoord2f(1, 0);
          glVertex3f(texture.getWidth(), 0, 0);
          glEnd();
        }
      }
    }

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        if(file != null){
          TextureParameter params = new TextureParameter();
          params.genMipMaps = genMipMaps.isSelected();
          params.minFilter = (TextureFilter)minFilterBox.getSelectedItem();
          params.magFilter = (TextureFilter)magFilterBox.getSelectedItem();
          Texture texture = editor.load(file.getAbsolutePath(), Texture.class, null, params);
          if(texture != null){
            editor.setTexture(texture);
          }
        }
      }

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        // renderingBackgroundColor.a);
        // fillRect(0, 0, unicodeFont.getGlyphPageWidth() + 2, unicodeFont.getGlyphPageHeight() + 2);
        int index = glyphPageCombo.getSelectedIndex();
        List pages = unicodeFont.getGlyphPages();
        if (index >= 0 && index < pages.size()) {
          Texture texture = ((GlyphPage)pages.get(glyphPageCombo.getSelectedIndex())).getTexture();


          glDisable(GL_TEXTURE_2D);
          glColor4f(renderingBackgroundColor.r, renderingBackgroundColor.g, renderingBackgroundColor.b,
            renderingBackgroundColor.a);
          glBegin(GL_QUADS);
          glVertex3f(0, 0, 0);
          glVertex3f(0, texture.getHeight(), 0);
          glVertex3f(texture.getWidth(), texture.getHeight(), 0);
          glVertex3f(texture.getWidth(), 0, 0);
          glEnd();
          glEnable(GL_TEXTURE_2D);


          texture.bind();
          glColor4f(1, 1, 1, 1);
          glBegin(GL_QUADS);
          glTexCoord2f(0, 0);
          glVertex3f(0, 0, 0);


          glTexCoord2f(0, 1);
          glVertex3f(0, texture.getHeight(), 0);


          glTexCoord2f(1, 1);
          glVertex3f(texture.getWidth(), texture.getHeight(), 0);


          glTexCoord2f(1, 0);
          glVertex3f(texture.getWidth(), 0, 0);
          glEnd();
        }
      }
    }

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